Search

CN-118374916-B - Manufacturing process of bi-component nylon elastic yarn and fabric thereof

CN118374916BCN 118374916 BCN118374916 BCN 118374916BCN-118374916-B

Abstract

The application discloses a double-component nylon elastic yarn and a manufacturing process of a fabric thereof, and relates to the technical field of textile, and the double-component nylon elastic yarn comprises an elastic yarn body consisting of a yarn core and an outer surface layer arc ring part, wherein the yarn core is made of nylon polymer fibers, the outer surface layer arc ring part is made of outer nylon fibers, and the elastic yarn body is obtained by blowing ATY yarns through the nylon polymer fibers and the outer nylon fibers according to a yarn blowing ratio of 1:0.8-2.8. According to the application, the elastic yarn body is obtained by condensing the modified hexamethylenediamine serving as the first monomer and the modified pimelic acid serving as the second monomer, so that the stability of the elastic yarn body is improved, and meanwhile, the pi bond function is enabled to improve the dyeing temperature of the elastic yarn body, so that the dyeing uniformity and elasticity are effectively improved while the problem of reduced dye-uptake is avoided, and the elastic yarn has the effect of being suitable for high-temperature setting.

Inventors

  • CHEN SHUHUA
  • LIU HUILIN
  • ZHANG SHUGUANG
  • LIN RUILIN
  • CHEN WENQIN

Assignees

  • 华懋（厦门）特种材料有限公司

Dates

Publication Date
20260508
Application Date
20240429

Claims (6)

  1. 1. A bi-component nylon elastic yarn is characterized by comprising an elastic yarn body composed of a yarn core and an outer surface layer arc ring part, wherein the yarn core is made of nylon polymer fibers, the outer surface layer arc ring part is made of outer nylon fibers, the outer nylon fibers are nylon 6 fibers, nylon 66 fibers or nylon 56 fibers, and the elastic yarn body is obtained by blowing ATY yarns through the nylon polymer fibers and the nylon 6 fibers, the nylon 66 fibers or the nylon 56 fibers according to a yarn blowing ratio of 1:1.2-2.5; The nylon polymer fiber is obtained by condensing modified hexamethylenediamine serving as a monomer I and modified pimelic acid serving as a monomer II, and the chemical formula of the monomer I is shown as follows: ; wherein R1 is C2-C8 alkyl, sulfonyl or halogen, R2 is phenyl or halogen; The chemical formula of the second monomer is shown as follows: ; Wherein R is phenyl, alkylphenyl or phenyl substituted by halogen.
  2. 2. The bicomponent nylon elastic yarn of claim 1, wherein the outer nylon fiber is FDY or DTY.
  3. 3. A bicomponent nylon elastic yarn according to claim 1, wherein the yarn core has a gauge of 20D/12F, 30D/24F, 40D/24F, 50D/24F, 70D/48F, 100D/48F or 200D/96F, and the yarn core is in the form of FDY or DTY and has a semi-dull or full-dull luster.
  4. 4. The bicomponent nylon elastic yarn of claim 1, wherein the outside of the elastic yarn body is coated with a water repellent layer.
  5. 5. A process for manufacturing a bi-component nylon elastic yarn fabric is characterized by comprising the step of manufacturing the bi-component nylon elastic yarn fabric by adopting the bi-component nylon elastic yarn according to any one of claims 1-4.
  6. 6. The process of claim 5, wherein the process comprises the steps of plain weave, check weave or twill weave, dyeing, fluorine-free water splashing, composite film pasting and layer composite treatment.

Description

Manufacturing process of bi-component nylon elastic yarn and fabric thereof Technical Field The application relates to the technical field of textile, in particular to a double-component nylon elastic yarn and a manufacturing process of a fabric thereof. Background With the importance of wearing comfort, more and more fabrics are required to have elasticity for improving the wearing comfort, and even the expression of 'ammonia-free fabric formation' is started. However, when the polyurethane is endowed with elasticity, the polyurethane is exposed and white, and the melting point and softening temperature of the polyurethane are lower than those of the conventional nylon yarns, so that the polyurethane components are extremely easy to lose elasticity due to high temperature when the polyurethane yarns are shaped at high temperature, the practicability of the yarns is affected, and the yarns are required to be improved. Disclosure of Invention In view of the above, a first object of the present application is to provide a bicomponent nylon elastic yarn for the purposes of elasticity enhancement, soft hand feel and skin friendliness. The specific scheme is as follows: The bicomponent nylon elastic yarn comprises an elastic yarn body composed of a yarn core and an outer surface layer arc ring part, wherein the yarn core is made of nylon polymer fibers, the outer surface layer arc ring part is made of outer nylon fibers, and the elastic yarn body is obtained by blowing ATY yarns through the nylon polymer fibers and the nylon 6 fibers, the nylon 66 fibers or the nylon 56 fibers according to a yarn blowing ratio of 1:0.8-2.8. Preferably, the outer nylon fiber is nylon 6 fiber, nylon 66 fiber or nylon 56 fiber. Preferably, the outer nylon fiber is FDY or DTY. Preferably, the nylon polymer fiber is obtained by condensing modified hexamethylenediamine as a monomer I and modified pimelic acid as a monomer II, and the chemical formula of the monomer I is shown as follows: ; Wherein R1 is C2-C8 alkyl, sulfonyl or halogen, and R2 is phenyl or halogen. Preferably, the elastic yarn body is obtained by blowing ATY yarns through the nylon polymer fibers and the nylon 6 fibers, the nylon 66 fibers or the nylon 56 fibers according to a yarn blowing ratio of 1:1.2-2.5. Preferably, the chemical formula of the second monomer is as follows: ; Wherein R is phenyl, alkylphenyl or phenyl substituted by halogen. Preferably, the yarn core has a specification of 20D/12F, 30D/24F, 40D/24F, 50D/24F, 70D/48F, 100D/48F or 200D/96F, and the yarn core has a morphology of FDY or DTY and a gloss of half-extinction or full-extinction. Preferably, the outside of the elastic yarn body is coated with a water-repellent layer. A manufacturing process of the bi-component nylon elastic yarn fabric comprises the step of manufacturing the bi-component nylon elastic yarn fabric to obtain the bi-component nylon elastic yarn fabric. Preferably, the method comprises the steps of plain weave, grid or twill weave fabric, dyeing, fluorine-free water splashing, compound film pasting and layer compound treatment. According to the scheme, the application provides the manufacturing process of the bi-component nylon elastic yarn and the fabric thereof, and the bi-component nylon elastic yarn is obtained by condensing the modified hexamethylenediamine serving as the first monomer and the modified pimelic acid serving as the second monomer, so that the stability of the elastic yarn body is improved, the pi bond effect is improved, the dyeing temperature of the elastic yarn body is improved, the problem of reduced dye-uptake is avoided, the dyeing uniformity and elasticity are effectively improved, and the high-temperature setting effect is realized. The manufacturing process of the bi-component nylon elastic yarn fabric obtains the corresponding fabric by adopting the elastic yarn body, so that the bi-component nylon elastic yarn fabric has the effects of high elasticity, high strength, high heat resistance and high stability. Drawings In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art. FIG. 1 is a schematic illustration of the structure of a disclosed bicomponent nylon elastic yarn; FIG. 2 is an electron microscope scan of a bicomponent nylon elastic yarn of the present disclosure; FIG. 3 is a schematic structural view of a first type of stretch yarn fabric disclosed herein; FIG. 4 is a schematic structural view of a second class of stretch yarn fabric of the present disclosure; fig. 5 is a schematic structural view of a third